Radio Shack TRS-80

PRINT
MEM
... to
see if
you
agree.
Obviously,
the short
learning
programs
we have been
writing so far are not taking a
lot of
memory
space.
This
changes
quickly,
however, as we move to
more sophisticated
program-
ming. Make a
habit of
typing
PRINT MEM when
completing a program to
develop a sense
of its size and
memory
requirements.
The
third
and final
error
message is
SORRY
It means
"Sorry
—
you
have run
out of memory
locations and must
either
cut down the pro-
gram
size or
purchase
additional
memory."
With some
practice
you
will be able to predict
how
much memory a
given program
will need.
All lessons and programs furnished
with
Radio Shack's
LEVEL I
system
will run in
the
"4K" of memory you
have
available.
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Learned
in
Chapter
8
commands
PRINT MEM
Miscellaneous
Calculator
Mode
Memory
Byte
SORRY
40